teamforce - JALT

Rock #	Properties	Prediction: A rock or a mineral	Why
1	igneous, glossy, and dark	obsidian	Justin said so
2	shiny, luster, and dark	basalt	it is the same color as basalt
3	feels hollow, gray, and looks like plaster	the rock out of a driveway	it looks like it +texture
4	smooth, cleavage, splits flat, thin, and shiny luster	Mica	has the same description as mica
5	no luster, rough, and waxy	maybe halite	Halite has pretty much the same texture
6	it's white and earthy	possibly quartz or a rock	rock, because it sort of looks like the rocks in a backyard
7	it is rough, it has rocks in it, and shiny	rounded grain	it kind of has grain, in it
8	multi-color, and sedimentary	it is granite	because